National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Overcast

64°F

18°C

Humidity 63%
Wind Speed S 10 MPH
Barometer 29.5 in (998.99 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Dec 01:00 AM PST
Extended Forecast for

3 Miles NNE Pleasant Hill CA

Flood Watch December 24, 01:19am until December 26, 10:00pm
Wind Advisory until December 24, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 01:19am until December 26, 10:00pm
    Wind Advisory until December 24, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: Showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. High near 59. South southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers
    Likely then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 53. Southeast wind 8 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Severe
    Thunderstorms

  • Christmas Day

    Christmas Day: Showers likely and possibly a thunderstorm, then showers after 7am. Some of the storms could be severe. High near 55. South wind 13 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Severe
    Thunderstorms
    then Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 50. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Severe
    Thunderstorms

  • Friday

    Friday: Showers, with thunderstorms also possible after 4pm. High near 54. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Patchy fog before 10pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers before 10am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 54. South wind 16 to 21 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. High near 59. South southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 53. Southeast wind 8 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
Showers likely and possibly a thunderstorm, then showers after 7am. Some of the storms could be severe. High near 55. South wind 13 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 50. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after 4pm. High near 54. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Patchy fog before 10pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Saturday
A slight chance of showers before 10am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 37.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 52.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Pleasant Hill CA
 37.99°N 122.06°W (Elev. 131 ft)
Last Update:
12:27 am PST Dec 24, 2025
Forecast Valid:
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation